Bill Greene/Globe Staff
They're at it again. MIT pranksters have placed what appears to be a TARDIS -- a Time And Relative Dimension(s) in Space time machine from the British sci-fi show Doctor Who -- atop the MIT building at 77 Mass. Ave.
Freshmen moving in this morning paused to admire the ingenuity of their mystery peers, who, in an MIT tradition, call themselves "hackers."
A sign on the front of the TARDIS, which is a blue old-fashioned British police call box, said, "Hacker Telephone -- Free for use of hackers."
Past "hacks" -- most of which involved placing large objects on the prominent dome of MIT's Building 10 -- have included converting the dome into the robot R2D2 in honor of the release of Star Wars Episode I and placing a campus police car on the dome.
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